Is return none necessary? if not used what will happen does it keep returning variables and commands etc? thank you for the help

CodePudding user response：

No, return statements are not necessary in a Python function.

If there is no return statement, Python will implicitly return none when it reaches the end of the function.

CodePudding user response：

in python. if you do not return anything, it will automatically (implicitly) return None. you can test that by making a function like

def fun():
    pass

then you can print that function

print(fun())

you will see that it will output None. Thus, it is not a must to return None